145330856 has 32 divisors (see below), whose sum is σ = 299263680. Its totient is φ = 65616000.

The previous prime is 145330831. The next prime is 145330877. The reversal of 145330856 is 658033541.

It is a super-2 number, since 2×145330856² = 42242115411385472, which contains 22 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7820 + ... + 18756.

It is an arithmetic number, because the mean of its divisors is an integer number (9351990).

Almost surely, 2^145330856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145330856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149631840).

145330856 is an abundant number, since it is smaller than the sum of its proper divisors (153932824).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145330856 is a wasteful number, since it uses less digits than its factorization.

145330856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11105 (or 11101 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 145330856 is about 12055.3247986108. The cubic root of 145330856 is about 525.7580655716.

The spelling of 145330856 in words is "one hundred forty-five million, three hundred thirty thousand, eight hundred fifty-six".